gnu: gnucash: Disable the stress-options-test using a phase.

The qof test is also reinstated; it was failing because the needed locales
were not installed.

* gnu/packages/patches/gnucash-disable-failing-tests.patch: Delete file.
* gnu/local.mk (dist_patch_DATA): Unregister it.
* gnu/packages/gnucash.scm (gnucash)[patches]: Remove it.
[phases]{disable-stress-options-test}: Implement it using SUBSTITUTES*.
{install-locales}: New phase.

gnu/local.mk

@@ -831,7 +831,6 @@ dist_patch_DATA =						\
   %D%/packages/patches/gmp-faulty-test.patch			\
   %D%/packages/patches/gnome-todo-libical-compat.patch		\
   %D%/packages/patches/gnome-tweak-tool-search-paths.patch	\
-  %D%/packages/patches/gnucash-disable-failing-tests.patch	\
   %D%/packages/patches/gnucash-fix-test-transaction-failure.patch \
   %D%/packages/patches/gnutls-skip-trust-store-test.patch	\
   %D%/packages/patches/gnutls-skip-pkgconfig-test.patch		\

gnu/packages/gnucash.scm

@@ -60,8 +60,7 @@
        (sha256
         (base32
          "0grr5qi5rn1xvr7qx5d7mcxa2mcgycy2b325ry73bb485a6yv5l3"))
-       (patches (search-patches "gnucash-disable-failing-tests.patch"
-                                "gnucash-fix-test-transaction-failure.patch"))))
+       (patches (search-patches "gnucash-fix-test-transaction-failure.patch"))))
     (build-system cmake-build-system)
     (inputs
      `(("guile" ,guile-2.2)
@@ -125,6 +124,21 @@
              (substitute* "libgnucash/scm/price-quotes.scm"
                (("\"perl\" \"-w\" ") ""))
              #t))
+         ;; The test-stress-options unit test is known to fail, so we disable
+         ;; it (see: https://bugs.gnucash.org/show_bug.cgi?id=796877).
+         (add-after 'unpack 'disable-stress-options-test
+           (lambda _
+             (substitute* "gnucash/report/standard-reports/test/CMakeLists.txt"
+               (("test-stress-options.scm") ""))
+             #t))
+         ;; The qof test requires the en_US, en_GB, and fr_FR locales.
+         (add-before 'check 'install-locales
+           (lambda _
+             (setenv "LOCPATH" (getcwd))
+             (invoke "localedef" "-i" "en_US" "-f" "UTF-8" "./en_US.UTF-8")
+             (invoke "localedef" "-i" "en_GB" "-f" "UTF-8" "./en_GB.UTF-8")
+             (invoke "localedef" "-i" "fr_FR" "-f" "UTF-8" "./fr_FR.UTF-8")
+             #t))
          ;; There are about 100 megabytes of documentation.
          (add-after 'install 'install-docs
            (lambda* (#:key inputs outputs #:allow-other-keys)

gnu/packages/patches/gnucash-disable-failing-tests.patch

@@ -1,39 +0,0 @@
-test-stress-options.scm does not exist, and test-qof passes when run in the
-build directory after the gnucash build.
-
-diff -ur gnucash-3.3.old/gnucash/report/standard-reports/test/CMakeLists.txt gnucash-3.3/gnucash/report/standard-reports/test/CMakeLists.txt
---- gnucash-3.3.old/gnucash/report/standard-reports/test/CMakeLists.txt	2018-10-04 09:29:00.916641417 -0400
-+++ gnucash-3.3/gnucash/report/standard-reports/test/CMakeLists.txt	2018-10-04 09:30:52.962504860 -0400
-@@ -13,10 +13,6 @@
-   test-income-gst.scm
- )
- 
--set(scm_test_with_textual_ports_SOURCES
--    test-stress-options.scm
--)
--
- set(GUILE_DEPENDS
-   scm-gnc-module
-   scm-app-utils
-@@ -31,9 +27,6 @@
- 
- if (HAVE_SRFI64)
-   gnc_add_scheme_tests("${scm_test_with_srfi64_SOURCES}")
--  if (HAVE_TEXT_PORTS)
--    gnc_add_scheme_tests("${scm_test_with_textual_ports_SOURCES}")
--  endif (HAVE_TEXT_PORTS)
- endif (HAVE_SRFI64)
- 
- gnc_add_scheme_tests("${scm_test_standard_reports_SOURCES}")
-diff -ur gnucash-3.3.old/libgnucash/engine/test/CMakeLists.txt gnucash-3.3/libgnucash/engine/test/CMakeLists.txt
---- gnucash-3.3.old/libgnucash/engine/test/CMakeLists.txt	2018-10-04 09:29:00.876640751 -0400
-+++ gnucash-3.3/libgnucash/engine/test/CMakeLists.txt	2018-10-05 10:46:22.542962546 -0400
-@@ -54,8 +54,6 @@
- # This test does not run on Win32
- if (NOT WIN32)
-   set(SOURCES ${test_qof_SOURCES} ${CMAKE_SOURCE_DIR}/common/test-core/unittest-support.c)
--  add_engine_test(test-qof "${SOURCES}")
--  target_compile_definitions(test-qof PRIVATE TESTPROG=test_qof)
- 
-   set(SOURCES ${test_engine_SOURCES} ${CMAKE_SOURCE_DIR}/common/test-core/unittest-support.c)
-   add_engine_test(test-engine "${SOURCES}")